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Percutaneous interspinous distraction device for the treatment of lumbar spinal canal stenosis: clinical and radiographic results at 2-year follow-up.

Yingsakmongkol W, Chaichankul C, Limthongkul W - Int J Spine Surg (2014)

Bottom Line: The mean VAS score of back pain decreased significantly (p < 0.05).The device offers significant decrease in back pain, leg pain and ODI score with 2-year lasting relief from symptoms.A very weak correlation between the radiographic changes and improvement of pain was found.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopaedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

ABSTRACT

Objective: To evaluate the effectiveness of the In- space (Synthes, Umkirch, Germany) and the correlation between radiographic parameters and clinical outcome in patients with lumbar spinal canal stenosis (LSS).

Methods: Between June 2009 and May 2013, 56 patients with LSS underwent In-space by one senior surgeon. All of the patients were evaluated both clinically and radiographic measurements before the procedure and each visit at the postoperative follow-up. Preoperative and postoperative X-ray imaging was performed before the procedure and at follow-up to assess the correlation with the clinical outcome. Radiological measurements and clinical outcomes were recorded to establish a relationship between the radiographic parameters and clinical outcome of this procedure. All patients had at least 2 years of follow-up.

Results: The mean VAS score of back pain decreased significantly (p < 0.05).

Conclusions: Our data suggest that percutaneous interspinous devices are a good alternative to treat LSS. The device offers significant decrease in back pain, leg pain and ODI score with 2-year lasting relief from symptoms. The increased intervertebral foramenal space explains the improvement of leg pain, but the mechanism of back pain relief remains unclear. A very weak correlation between the radiographic changes and improvement of pain was found.

No MeSH data available.


Related in: MedlinePlus

Preoperative and postoperative mean FA.
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Figure 0006: Preoperative and postoperative mean FA.

Mentions: Radiological measurements documented an increased size of the foraminal height and foraminal width significantly (p < 0.0001) in most cases (Figure 5). Similarly, significant improvement of foraminal area was found after the procedure (p < 0.0001) (Figure 6). Although, variations of the intervertebral disc height were not significant, increase posterior disc height leading to decrease in intervertebral angle was found after the procedure (p < 0.001) (Figure 5 and Figure 7).


Percutaneous interspinous distraction device for the treatment of lumbar spinal canal stenosis: clinical and radiographic results at 2-year follow-up.

Yingsakmongkol W, Chaichankul C, Limthongkul W - Int J Spine Surg (2014)

Preoperative and postoperative mean FA.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4325485&req=5

Figure 0006: Preoperative and postoperative mean FA.
Mentions: Radiological measurements documented an increased size of the foraminal height and foraminal width significantly (p < 0.0001) in most cases (Figure 5). Similarly, significant improvement of foraminal area was found after the procedure (p < 0.0001) (Figure 6). Although, variations of the intervertebral disc height were not significant, increase posterior disc height leading to decrease in intervertebral angle was found after the procedure (p < 0.001) (Figure 5 and Figure 7).

Bottom Line: The mean VAS score of back pain decreased significantly (p < 0.05).The device offers significant decrease in back pain, leg pain and ODI score with 2-year lasting relief from symptoms.A very weak correlation between the radiographic changes and improvement of pain was found.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopaedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.

ABSTRACT

Objective: To evaluate the effectiveness of the In- space (Synthes, Umkirch, Germany) and the correlation between radiographic parameters and clinical outcome in patients with lumbar spinal canal stenosis (LSS).

Methods: Between June 2009 and May 2013, 56 patients with LSS underwent In-space by one senior surgeon. All of the patients were evaluated both clinically and radiographic measurements before the procedure and each visit at the postoperative follow-up. Preoperative and postoperative X-ray imaging was performed before the procedure and at follow-up to assess the correlation with the clinical outcome. Radiological measurements and clinical outcomes were recorded to establish a relationship between the radiographic parameters and clinical outcome of this procedure. All patients had at least 2 years of follow-up.

Results: The mean VAS score of back pain decreased significantly (p < 0.05).

Conclusions: Our data suggest that percutaneous interspinous devices are a good alternative to treat LSS. The device offers significant decrease in back pain, leg pain and ODI score with 2-year lasting relief from symptoms. The increased intervertebral foramenal space explains the improvement of leg pain, but the mechanism of back pain relief remains unclear. A very weak correlation between the radiographic changes and improvement of pain was found.

No MeSH data available.


Related in: MedlinePlus